fixed Makefile to have KHMER macro
Adding command line options and mutation report
add emacs files to ignore
Merge branch 'master' of https://github.com/ctb/dbg-graph-null
added argparse options
error rate is now fraction
added seed argument to make-random-genome; added prints
merged in @fishjord changes
added README
Merge branch 'master' of github.com:ctb/dbg-graph-null into ctb-master

Conflicts:
	make-random-genome.py
	make-reads.py
Merge branch 'ctb-master'